Thaddeus hyatt



(No Modell.)

T. E YATT.

PAVEMENT PLATE 0E VAULT COVER. N o. 257,715.

Patented May 9, 1882,. Z-fzl'g.l.

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1A EL u E EAT? IA- IAWLELAAJ ATL E :WF1

/7 ffm! the following is a specification.

` part of this specification, like letters refer to THADDEUS HYATT, Ol" NEW YORK ADELAIDE LAKE PATENT UEEICE.

, N. Y., ASSIGNOR TO ELIZABETH HYATI, OF SAME PLAGE.

PAVEMENT-PLATE OR VAULT-COVER.

` SPECIFICATION forming' part'. of Letters Patent No. 257,715, dated May. 9, 1882.

Application filed April 11, 1882. (No model.) Patented in Engand Octobe; 18. 1873.

To all whom it may concern:

-Be it known that I, THADDEUS HYATT, a

citizen of the United States, and a residen ty of the city, county,

and State ofNew York, have invented certain new and useful Improvements in Pavement-Plates or Vault-Covers, ot' which The object ot' my invention is, by means of lead plating or veneering, to prevent the foot; surface of iron coal-hole plates and plates used to form the approaches to buildings over sunk areas and otherwise-as platforms, stoops, steps, and sills-from becoming slippery and dangerous by foot-wear.

In the drawings attached hereto and making like parts in all `the figures.

Figure l represents a lead-plated coal-hole plate, tile, grating, 85e. Fig. 2 represents a lead-plated coal-hole plate,tile, or grating with apertures blocked by glass. Fig. 3 represents a lead-plated supporting frame or foundation employed to connect a number ot' lead-plated tiles into a larger and more extended surface.

Ais a cast-iron plate, cover, tile, or grating; B, lead surface or veneer of same; C,glasses;

foundation.

The method adopted to plate theiron with lead forms no part ot' my invention.l It may be done in any well-known manner. The mode which I have successfully adopted in practice is to attach the'lead to the iron by the process known 4as sweating/7 Vthe iron for this purpose being first cleaned and faced with tin, solder, or other metal or alloy; and the under face of the lead veneer having been also made clean and bright, the lead is laid upon the face of the iron' and the two metals made sufficiently hot to unite by rubbing and pressure.

I employ iron plates thus venecred as treads in the construction of stoops and tiights ot' steps, and for the platforms ot' stoops over sunk areas, and for the sills of' doorways, and for coal-hole plates in sidewalks, and for rootingplates in the construction ot' roof-pavements;

and I make them perforated to admit light and air, and I block the perforations with glass when light only without air is wanted.

WhatI claim as myinvention, and desire to secure by Let-ters Patent, is-

1. Safe foot-surfaces formed upon metal pa vement-plates, tiles, gratings, or covers, and upon foot-surface constructions made therefrom, by means of lead veneers, substantially as and for the purposes herein set forth and illustrated.

i 2. Illuminating or glass set lead plated footsurface plates 'and constructions, substantially as and for the purposes herein set forth and illustrated.

THADDEUS HYATT. Witnesses:

T. C. BEECHT, LLOYD F. KELEHER. 

